Question

simplifique as frações até torná-las irredutíveis​

Answer 1

Explicação passo-a-passo:

a) $\sf \dfrac{12}{42}=\dfrac{12\div6}{42\div6}=\red{\dfrac{2}{7}}$

b) $\sf \dfrac{10}{8}=\dfrac{10\div2}{8\div2}=\red{\dfrac{5}{4}}$

c) $\sf \dfrac{15}{30}=\dfrac{15\div15}{30\div15}=\red{\dfrac{1}{2}}$

d) $\sf \dfrac{27}{81}=\dfrac{27\div27}{81\div27}=\red{\dfrac{1}{3}}$

e) $\sf \dfrac{18}{24}=\dfrac{18\div6}{24\div6}=\red{\dfrac{3}{4}}$

f) $\sf \dfrac{20}{25}=\dfrac{20\div5}{25\div5}=\red{\dfrac{4}{5}}$

g) $\sf \dfrac{32}{20}=\dfrac{32\div4}{20\div4}=\red{\dfrac{8}{5}}$

h) $\sf \dfrac{12}{9}=\dfrac{12\div3}{9\div3}=\red{\dfrac{4}{3}}$